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authorIan Campbell <ian.campbell@citrix.com>2014-04-17 13:57:37 +0100
committerDavid Vrabel <david.vrabel@citrix.com>2014-04-24 13:09:46 +0100
commit5e40704ed2c69425bcb076fb1890417ef137e6c8 (patch)
treecd46787cce44df343041339655636d1945e4ca0a /arch/arm/xen/hypercall.S
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input (diff)
downloadlinux-dev-5e40704ed2c69425bcb076fb1890417ef137e6c8.tar.xz
linux-dev-5e40704ed2c69425bcb076fb1890417ef137e6c8.zip
arm: xen: implement multicall hypercall support.
As part of this make the usual change to xen_ulong_t in place of unsigned long. This change has no impact on x86. The Linux definition of struct multicall_entry.result differs from the Xen definition, I think for good reasons, and used a long rather than an unsigned long. Therefore introduce a xen_long_t, which is a long on x86 architectures and a signed 64-bit integer on ARM. Use uint32_t nr_calls on x86 for consistency with the ARM definition. Build tested on amd64 and i386 builds. Runtime tested on ARM. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'arch/arm/xen/hypercall.S')
-rw-r--r--arch/arm/xen/hypercall.S1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/xen/hypercall.S b/arch/arm/xen/hypercall.S
index d1cf7b7c2200..44e3a5f10c4c 100644
--- a/arch/arm/xen/hypercall.S
+++ b/arch/arm/xen/hypercall.S
@@ -89,6 +89,7 @@ HYPERCALL2(memory_op);
HYPERCALL2(physdev_op);
HYPERCALL3(vcpu_op);
HYPERCALL1(tmem_op);
+HYPERCALL2(multicall);
ENTRY(privcmd_call)
stmdb sp!, {r4}